JP7379034B2 - Input device and control device - Google Patents

Description

The present invention relates to an input device and a control device.

As a conventional technique, a touch panel system including a touch panel having a plurality of first signal lines and a plurality of second signal lines intersecting the plurality of first signal lines is known (for example, see Patent Document 1). ).

This touch panel system includes a first detection process of driving the first signal line and detecting the capacitance on the first signal line and the second signal line, and detecting the capacitance on the second signal line. a second detection step of detecting from the first signal line by driving the first signal line; In the touch panel, in order to detect finger input, the detection unit performs touch detection using both the first detection process and the second detection process.

JP2018-97820A

For example, when such a conventional touch panel system is configured to allow push operation, when transitioning from touch operation to push operation, the contact area increases and the coordinates of touch operation and push operation coordinates deviate, causing the user to There is a possibility that an unintended operation will be determined.

Therefore, an object of the present invention is to provide an input device and a control device that can suppress determination of operations that are not intended by the user.

One aspect of the present invention includes a detection unit that detects a physical quantity at a plurality of detection points set on an operation surface, and a peak change in the absolute value of the physical quantity at the peak of the physical quantity after it is determined that the operation surface is in contact with a detection target. and a control unit that determines a plurality of operations based on an off-peak change in the absolute value of the physical quantity at at least one detection point other than the peak.

According to the present invention, it is possible to suppress determination of an operation that is not intended by the user.

FIG. 1(a) is a schematic diagram showing an example of the inside of a vehicle in which an input device according to an embodiment is mounted, and FIG. 1(b) is an example of a block diagram of the input device and the control device. FIG. 2(a) is a schematic diagram showing an example of the drive electrode and detection electrode arranged below the operation surface of the input device according to the embodiment, and _FIG . FIG. 2C is a graph showing an example of a capacitance C, and FIG. 2C is a schematic diagram showing an example of an icon displayed on a display device. FIG. 3(a) is a schematic diagram showing an example of the first period _T1 and the second period _T2 set by the control unit of the input device according to the embodiment, and FIG. FIG. 3 is a schematic diagram for explaining an example of conditions. FIG. 4(a) is a schematic diagram for explaining an example of detecting a touch operation in the input device according to the embodiment, and FIG. 4(b) is a schematic diagram for explaining an example of detecting a push operation. FIG. 4C is a graph showing an example of the capacitance C detected in FIGS. 4A and 4B. FIG. 5(a) is a schematic diagram for explaining an example of detection of a tracing operation in the input device according to the embodiment, and FIG. 5(b) is a schematic diagram showing the capacitance detected in FIG. 5(a). It is a graph which shows an example of C. FIG. 6 is a graph showing an example of capacitance C in a touch operation and a tracing operation when there are many detection points set on the operation surface of the input device according to the embodiment. FIG. 7 is a flowchart illustrating an example of the operation of the input device according to the embodiment.

(Summary of embodiment)
The input device according to the embodiment includes a detection unit that detects a physical quantity at a plurality of detection points set on the operation surface, and a detection unit that detects the absolute value of the physical quantity at the peak of the physical quantity after it is determined that the operation surface is in contact with the detection target. The control unit is generally configured to include a control unit that determines a plurality of operations based on a peak change amount and an off-peak change amount of the absolute value of a physical quantity at at least one detection point other than the peak.

After contact is detected, the input device determines the operation based on the peak change amount and off-peak change amount of the physical quantity. It is easy to determine whether the contact area has increased or decreased and whether or not the detection target has moved, and it is possible to suppress determination of operations that are not intended by the user.

[Embodiment]
(Overview of input device 1)
FIG. 1(a) is a schematic diagram showing an example of the interior of a vehicle, and FIG. 1(b) is an example of a block diagram of an input device and a control device. FIG. 2(a) is a schematic diagram showing an example of the drive electrode and detection electrode arranged below the operation surface, and FIG. 2(b) is a schematic diagram showing an example of the capacitance C detected at the coordinate _Y2 . FIG. 2C is a schematic diagram showing an example of an icon displayed on a display device. FIG. 3(a) is a schematic diagram showing an example of the first period _T1 and the second period _T2 , and FIG. 3(b) is a schematic diagram illustrating an example of the determination conditions. In the graphs shown in FIG. 2(c), FIG. 4( _c ), FIG. 5(b), and FIG. The capacity is C.

Note that in each of the figures according to the embodiments described below, the ratio between the figures may differ from the actual ratio. Further, in FIG. 1(b), main information flows are indicated by arrows.

The input device 1 of this embodiment is mounted on a vehicle 8, as shown in FIG. 1(a), as an example. The input device 1 is configured to receive an input operation for controlling an on-vehicle device 85 of the vehicle 8 . This in-vehicle device 85 is, for example, an air conditioner, a navigation device, a music playback device, a video playback device, a vehicle control device that controls various settings of the vehicle 8, automatic driving functions, and the like.

As shown in FIG. 1B, the input device 1 is generally configured to include a detection section that detects physical quantities at a plurality of detection points set on the operation surface 20, and a control device 4. After it is determined that the operation surface 20 of the detection unit is in contact with the detection target, the control device 4 detects the peak change amount of the absolute value of the physical quantity at the peak of the physical quantity detected by the detection unit, and at least one detection other than the peak. The general configuration includes a control unit 40 that determines a plurality of operations based on the amount of off-peak change in the absolute value of the physical quantity at a point.

The control device 4 further includes a peak detection section 42 and a storage section 44, and is generally configured.

The detection unit of this embodiment is the touch pad 2 arranged on the floor console 80 of the vehicle 8. The touch pad 2 is configured to detect capacitance as a physical quantity. The detection target is a user's operating finger, but is not limited to this, and may also be a stylus pen or the like whose capacitance changes upon contact. Note that the detection unit may be configured as a sensor that detects pressure or load applied to the operation surface 20 as a physical quantity.

Further, the detection unit is not limited to the touch pad 2, and may be a display device 82 disposed on the center console 81 and having a touch panel, a touch pad 84 disposed on the steering wheel 83, or the like.

(Configuration of touch pad 2)
The touch pad 2 is a mutual capacitance type touch pad including a plurality of drive electrodes 21 and a plurality of detection electrodes 22, as shown in FIG. 2(a). The drive electrode 21 and the detection electrode 22 are insulated from each other and arranged below the operation surface 20. The drive electrode 21 is arranged along the Y axis, for example. The detection electrode 22 is arranged along the X-axis, for example. In this way, the XY coordinate system is set on the operation surface 20. It is assumed that the touch pad 2 does not move the operation surface 20 during a push operation, that is, does not move downward during a push operation.

The intersection of the drive electrode 21 and the detection electrode 22 is a detection point 23. After calculating the capacitance from the detection point (X ₁ , Y ₁ ) to the detection point (X ₅ , Y ₅ ), the touch pad 2 calculates capacitance information S ₁ that is capacitance information for one cycle. is generated and output to the control section 40.

Since the touchpad 2 is a mutual capacitance type touchpad, when the user's operating finger contacts the operating surface 20, the capacitance decreases. Therefore, the touch pad 2 of this embodiment generates a value obtained by taking the absolute value of capacitance as capacitance information _S1 . Note that the absolute value of capacitance will be referred to as capacitance C below.

Note that as a modification, the detection unit may be configured as a self-capacitance type touch pad in which a plate-shaped detection electrode is arranged at the detection point 23. In this touchpad, when a user's operating finger comes into contact with the operating surface 20, the capacitance increases.

(Configuration of control device 4)
- Configuration of the control unit 40 The control unit 40 includes, for example, a CPU (=Central Processing Unit) that performs calculations and processing on acquired data according to a stored program, a RAM (=Random Access Memory) that is a semiconductor memory, and a ROM. It is a microcomputer consisting of (=Read Only Memory), etc. For example, a program for operating the control unit 40 is stored in this ROM. The RAM is used, for example, as a storage area for temporarily storing calculation results and the like. Further, the control section 40 has a means for generating a clock signal therein, and operates based on this clock signal.

As shown in FIG. 2(b), the control unit 40 has a first threshold Th ₁ , and when there is a detection point 23 where the capacitance C is equal to or _greater than the first threshold Th 1, , it is determined that the operation surface 20 has been touched by the operation finger, that is, a touch operation has been performed.

Then, the control unit 40 calculates the coordinates of the touch operation using the capacitance C that is equal to or _greater than the first threshold value Th1. Calculation of coordinates is performed by weighted average, for example, but is not limited to this.

Further, as shown in FIG. 2(b), while the contact of the operating surface 20 by the operating finger is being determined, the control unit 40 causes the capacitance C at the detection point 23 that has reached its peak to decrease, resulting in a peak change amount. decreases to a predetermined second threshold Th ₂ or more, and the capacitance C at at least one detection point 23 other than the peak increases, and the amount of change outside the peak reaches a predetermined third threshold. When the threshold Th increases to ₃ or more, it is determined that an operation of moving the operating finger while touching the operating surface 20, that is, a tracing operation has been performed.

In FIG. 2(b), the detection point 23 that is a peak is shown as a peak P, and the detection points 23 other than the peak are shown as detection points _PX . This detection point P _X has coordinates (X ₁ , Y ₂ ) and coordinates (X ₃ , Y ₂ ) of a detection point 23 near the peak P and having a value equal to or higher than the first threshold Th ₁ . Note that, for example, when the coordinates of _the peak P are the coordinates (X ₂ , _{Y 2 )} , _the detection point P 23 is fine. In addition, below, the peak change amount will be described as ΔP, and the off-peak change amount will be described as _ΔPX .

Furthermore, as shown in FIG. 2(b), while the contact of the operating surface 20 by the operating finger is being determined, the control unit 40 controls the capacitance C at the detection point 23, which has reached its peak, within a predetermined allowable range. When the capacitance C at at least one detection point 23 other than the peak increases and the amount of change outside the peak _ΔP increases to a predetermined fourth threshold Th ₄ or more , it is determined that an operation of pushing the operation surface 20 with an operation finger, that is, a push operation has been performed.

The fourth threshold Th ₄ of this embodiment is larger than the third threshold Th ₃ , as shown in FIG. 2(b). This is because the amount of off-peak change is larger in the push operation than in the tracing operation, but is not limited to this, and the third threshold Th ₃ and the fourth threshold Th ₄ are the same value. It's okay.

The control unit 40 includes a determination condition 440 for determining a touch operation, a tracing operation, and a push operation, as shown in FIG. 3(b). “≒” in FIG. 3(b) indicates that the capacitance C is within a predetermined allowable range, that is, there is almost no change in the capacitance C. Further, an upward arrow indicates an increase in capacitance C. A further downward arrow indicates a decrease in capacitance C.

- Configuration of peak detection unit 42 The peak detection unit 42 is configured to detect the peak of capacitance C. As shown in FIG. 3A, the peak detection unit 42 detects a peak within several cycles (=first period T ₁ ) from the cycle in which the capacitance C becomes equal to or greater than the first threshold Th ₁ Detect.

Specifically, the peak detection unit 42 detects a first period from time t ₁ to time t ₃ when the capacitance C that is equal to or higher than the first threshold Th ₁ (Th ₁ ≦C) is detected. Set _T1 , and detect the peak of capacitance C within that period. The peak detection section 42 generates peak information _S2 , which is information including the coordinates of the detected peak and the capacitance C, and outputs it to the control section 40. Note that the time period t ₁ to time t ₄ shown in FIG. 3(a) corresponds to the cycle of detecting the capacitance C.

Note that the time from the start of the first period T ₁ (=time t ₁ ) to the end of the second period T ₂ (=time t ₄ ) shown in FIG. 3(a) is, for example, less than 1 second. . The first period T ₁ and the second period T ₂ are determined according to the period of scanning the operation surface 20 .

- Configuration of Storage Unit 44 The storage unit 44 has a first threshold Th ₁ to a fourth threshold Th ₄ and a determination condition 440. Furthermore, the storage unit 44 stores capacitance information _S1 for several cycles in chronological order. The storage unit 44 is, for example, a semiconductor memory, an HDD (=Hard Disk Drive), an SSD (=Solid State Drive), a RAM of the control unit 40, or the like. The storage unit 44 in this embodiment is the RAM of the control unit 40.

(About operation judgment)
The input device 1 is configured to accept touch operations, push operations, and the like on icons displayed on the display device 82 . For example, as shown in FIG. 2C, when a plurality of icons 820 are lined up at narrow intervals on the display device 82, the user selects the desired icon 820 by a touch operation on the operation surface 20, and then by a push operation. When a decision operation is performed, there is a possibility that the decision operation will be performed on an unintended icon because the contact area becomes large or the operating finger shifts. In order to suppress such unintended operations, the control unit 40 of the control device 4 of the input device 1 determines touch operations, push operations, and tracing operations using the following determination method.

- Determination of touch operation FIG. 4(a) is a schematic diagram for explaining an example of detecting a touch operation, and FIG. 4(b) is a schematic diagram for explaining an example of detecting a push operation. , FIG. 4(c) is a graph showing an example of the capacitance C detected in FIGS. 4(a) and 4(b). FIG. 5(a) is a schematic diagram for explaining an example of detection of a tracing operation, and FIG. 5(b) is a graph showing an example of capacitance C detected in FIG. 5(a). . FIG. 6 is a graph showing an example of capacitance C in a touch operation and a tracing operation when there are many detection points set on the operation surface.

In FIG. 4A, a contact area 91 between the abdomen 90 of the operating finger 9 and the operating surface 20 when a touch operation is performed on the operating surface 20 is indicated by a dotted line. The contact area 91 indicates an area that the abdomen 90 comes into contact with during a touch operation performed around the coordinates (X ₂ , Y ₂ ). The squares in FIG. 4(c) indicate the capacitance C between the detection point (X ₁ , Y ₂ ) and the detection point (X ₅ , Y ₂ ), which are connected by solid lines.

When the capacitance C based on the periodically acquired capacitance information _S1 becomes equal to or greater than the first threshold Th1, the control unit 40 controls the capacitance C to reach the first threshold value _Th1 , as shown in FIG. 3(a). A first period T ₁ (=time t ₁ to time t _{3 )} is set starting from the time t 1 when the threshold value Th ₁ of 1 is exceeded, and capacitance information S ₁ is sent to the peak detection unit 42. output and detect the peak P.

Then, the control unit 40 calculates the coordinates at which the touch operation was detected, generates operation information _S3 indicating that the touch operation has been performed, and outputs it to the in-vehicle device 85.

The control unit 40 sets a second period T ₂ starting from the time t 2 when the peak P is detected _, and sets the peak change amount ΔP of the capacitance C at the peak P and the first period T 2 in the vicinity of the peak P. The amount of off-peak change _ΔPX in the capacitance C at the detection point 23 where the threshold value Th is ₁ or more is calculated. In FIG. 4(c), the detection point 23 of the coordinates (X ₁ , Y ₂ ) and the coordinates (X ₃ , Y ₂ ) is defined as a detection point _PX .

As shown in FIGS. 3(b) and 4(c), the control unit 40 controls the peak change amount ΔP and the off-peak change amount _ΔPX to be within the allowable range, that is, almost change during the second period _T2 . If there is no touch operation, it is determined that an operation other than a touch operation, that is, a push operation or a tracing operation has not been performed. The control unit 40 stops updating the coordinates while the touch operation is being performed.

- Determination of Push Operation In FIG. 4B, the contact area 91 when the user performs a push operation after performing a touch operation on the operation surface 20 is indicated by a dotted line. In the contact area 91, the abdomen 90 of the operating finger 9 is crushed and the contact area is increased compared to the touch operation. The diamonds in FIG. 4(c) indicate the capacitance C between the detection point (X ₁ , Y ₂ ) and the detection point (X ₅ , Y ₂ ), and are connected by a dashed-dotted line.

When the capacitance C based on the periodically acquired capacitance information _S1 becomes equal to or greater than the first threshold Th1, the control unit 40 controls the capacitance C to reach the first threshold value _Th1 , as shown in FIG. 3(a). A first period T ₁ (=time t ₁ to time t ₃ ) is set starting from the time t 1 when the threshold value Th ₁ of 1 is exceeded, and capacitance information S ₁ is sent to the peak detection unit 42 _. output and detect the peak P.

Then, the control unit 40 calculates the coordinates at which the touch operation was detected, generates operation information _S3 indicating that the touch operation has been performed, and outputs it to the in-vehicle device 85.

The control unit 40 sets a second period T ₂ starting from the time t ₂ when the peak P is detected, and calculates the peak change amount ΔP and the off-peak change amount ΔP _X of the peak P.

As shown in FIG. 3(b), the control unit 40 determines that in the second period _T2 , the peak change amount ΔP is within the allowable range, and the off-peak change amount _ΔPX is equal to the fourth threshold value. If Th increases to ₄ or more, it is determined that a push operation has been performed at that point. The control unit 40 generates operation information _S3 indicating that a push operation has been performed at the coordinates where the touch operation was first detected, and outputs it to the vehicle-mounted device 85, without updating the coordinates.

- Determination of tracing operation In FIG. 5A, the contact area 91 when the user performs a tracing operation after performing a touch operation on the operation surface 20 is indicated by a dotted line. This contact area 91 moves from the coordinates (X ₂ , Y ₂ ) to the coordinates (X ₃ , Y ₂ ) during several cycles. Due to this movement, the capacitance C increases at the detection point 23 in the traveling direction, and therefore decreases at the peak P. The squares in FIG. 5(b) indicate the capacitance C between the detection point (X ₁ , Y ₂ ) and the detection point (X ₅ , Y ₂ ) when touching the operation surface 20, and are connected by solid lines. . Further, the circles in FIG. 5(b) indicate the capacitance C at the detection point (X ₁ , Y ₂ ) to detection point (X ₅ , Y ₂ ) several cycles later, and are connected by two-dot chain lines.

When the capacitance C based on the periodically acquired capacitance information _S1 becomes equal to or greater than the first threshold Th1, the control unit 40 controls the capacitance C to reach the first threshold value _Th1 , as shown in FIG. 3(a). A first period T ₁ (=time t ₁ to time t ₃ ) is set starting from the time t 1 when the threshold value Th ₁ of 1 is exceeded, and capacitance information S ₁ is sent to the peak detection unit 42 _. output and detect the peak P.

Then, the control unit 40 calculates the coordinates at which the touch operation was detected, generates operation information _S3 indicating that the touch operation has been performed, and outputs it to the in-vehicle device 85.

The control unit 40 sets a second period T ₂ starting from the time t ₂ when the peak P is detected, and calculates the peak change amount ΔP and the off-peak change amount ΔP _X of the peak P.

As shown in FIG. 3(b), the control unit 40 controls the peak change amount ΔP to decrease to the second threshold value Th2 _{or more} and the off-peak change amount ΔP _X in the second period _T2 . increases to the third threshold Th ₃ or more, it is determined that a tracing operation has been performed at that point. The control unit 40 generates operation information S ₃ for updating coordinates when a touch operation is detected, and outputs it to the in-vehicle device 85 .

FIG. 6 shows a case where the distance between the drive electrode 21 and the detection electrode 22 is fine with respect to the operating finger 9, and when a tracing operation is performed, there are multiple detection points _PX at the peak P or near the peak P. . In FIG. 6, coordinates X ₁ to X ₁₆ at coordinate Y ₂ are illustrated.

In such a case, the control unit 40 controls the amount of change in the plurality of peaks P (peak P ₁ and peak P ₂ ) and _the plurality of detection points _P The operation is determined based on the amount of off-peak change in .

The control unit 40 controls the control unit 40 so that the peak change amount ΔP of the plurality of peaks P is within an allowable range, and the off-peak change amount _ΔP of at least one of the plurality of detection points _PX is equal to or greater than a fourth threshold Th ₄ If the number increases to , it is determined that it is a push operation.

In addition, the control unit 40 controls the control unit 40 so that at least one peak change amount ΔP of the plurality of peaks P decreases to a second threshold value Th2 _or more, and at least one off-peak change amount _ΔP of the plurality of detection points P If _X increases to the third threshold value _Th3 or more, it is determined that it is a tracing operation.

Below, the operation of the input device 1 of this embodiment will be explained according to the flowchart of FIG. 7.

(motion)
The control unit 40 of the control device 4 of the input device 1 periodically acquires capacitance information S ₁ from the touch pad 2 . If “Yes” in step 1 is established, that is, if a touch operation is detected (Step 1: Yes), the control unit 40 calculates the coordinates where the touch operation was detected, and determines whether the touch operation was performed at the calculated coordinates. Operation information _S3 indicating this is generated and output to the on-vehicle device 85 (Step 2). Note that the timing for outputting the operation information _S3 indicating that a touch operation has been performed is not limited to step 2, and may be any time before the determination of a push operation or a tracing operation.

Next, the control unit 40 sets a first period _T1 starting from the time when the touch operation is detected, and controls the peak detection unit 42 to detect the peak P (Step 3).

Next, the control unit 40 sets a second period _T2 starting from the time when the peak P is detected (Step 4).

Next, the control unit 40 determines the peak change amount ΔP of the peak P based on the detected peak P, and the off _{- peak} detection point P The amount of change _ΔPX is calculated and monitored every cycle (Step 5).

Next, when the control unit 40 determines that a push operation has been performed based on the determination condition 440 (Step 6: Yes), the control unit 40 generates operation information _S3 indicating that a push operation has been performed without updating the coordinates. The information is output to the on-vehicle device 85 (Step 7), and the process ends.

Here, in step 6, if the control unit 40 determines that a tracing operation has been performed instead of a push operation (Step 6: No) based on the determination condition 440 (Step 8: Yes), the control unit 40 generates operation information _S3 for updating the coordinates. and outputs it to the in-vehicle device 85 (Step 9), and the process ends.

Further, in Step 8, if the operation is neither a push operation nor a tracing operation (Step 8: No), the control unit 40 ends the process without generating the operation information _S3 .

Note that if the push operation and the tracing operation are not detected within the second period _T2 , the control unit 40 advances the process to step 1. Further, the control unit 40 determines that the operation has ended when all of the detected capacitances C become lower than the first threshold _Th1 .

(Effects of embodiment)
The input device 1 according to the present embodiment can suppress determination of an operation that is not intended by the user. For example, in the case of a device that determines whether a touch operation or a push operation is based only on the detected capacitance, an increase in the contact area may cause the coordinates to shift and a determination that is not intended by the user to be made. In addition, in such a device, if the coordinates are not updated for a certain period of time in order to suppress this coordinate shift, there is a possibility that the coordinates will not be updated in the tracing operation after the touch operation, causing a feeling of discomfort in the operation. However, since the input device 1 determines a push operation and a tracing operation based on a combination of increases and decreases in the peak change amount ΔP and the off-peak change amount _ΔPX after a touch operation is detected, It is easy to determine whether there is a shift in coordinates or movement of the operating finger, and it is possible to suppress determination of operations that are not intended by the user.

After detecting the touch operation, the input device 1 determines that the touch operation is a push operation if the peak change amount △P is within the allowable range and the off-peak change amount △ _PX increases to a fourth threshold Th ₄ or more, Operation information _S3 indicating that the push operation was performed with the coordinates at the time of the touch operation is output. Therefore, in the input device 1, the deviation between the coordinates of the touch operation and the coordinates of the push operation is suppressed, and the operation feeling becomes better for the user, compared to a case where this configuration is not adopted.

In the input device 1, after detecting a touch operation, when the peak change amount ΔP decreases to a second threshold Th2 or _more , and the off-peak change amount _ΔPX increases to a third threshold Th3 _or more. , determines that it is a tracing operation, updates the coordinates at the time of the touch operation, and outputs operation information _S3 indicating that the tracing operation has been performed. Therefore, the input device 1 can more easily determine whether a push operation or a tracing operation is performed, compared to a case where this configuration is not adopted.

In the input device 1, since the fourth threshold value _Th4 for determining a push operation is larger than the third threshold value _Th3 for determining a tracing operation, compared to a case where this configuration is not adopted, Push operation and tracing operation can be accurately determined.

The input device 1 or the control device 4 according to the above-described embodiments and modifications may include, for example, a program executed by a computer, an ASIC (Application Specific Integrated Circuit), and a FPGA (Field Programmable Gate), depending on the purpose. Array), etc. may also be used.

Although several embodiments and modifications of the present invention have been described above, these embodiments and modifications are merely examples, and do not limit the invention according to the claims. These novel embodiments and modifications can be implemented in various other forms, and various omissions, substitutions, changes, etc. can be made without departing from the gist of the present invention. Furthermore, not all of the combinations of features described in these embodiments and modifications are essential to the means for solving the problems of the invention. Furthermore, these embodiments and modifications are included within the scope and gist of the invention, as well as within the scope of the invention described in the claims and its equivalents.

DESCRIPTION OF SYMBOLS 1... Input device, 2... Touchpad, 4... Control device, 8... Vehicle, 9... Operation finger, 20... Operation surface, 21... Drive electrode, 22... Detection electrode, 23... Detection point, 40... Control unit, 42 ...Peak detection unit, 44...Storage unit, 80...Floor console, 81...Center console, 82...Display device, 83...Steering, 84...Touch pad, 85...In-vehicle device, 90...Abdomen, 91...Touch area, 440... Judgment condition, 820...Icon, Th ₁ to Th ₄ ...First threshold to fourth threshold

Claims (4)

a detection unit that periodically detects physical quantities at multiple detection points set on the operation surface;
A maximum value of the physical quantity as a peak of the physical quantity from the absolute value of the physical quantity, and a maximum of the physical quantity, in a first period determined starting from the time when contact of the operating surface by the detection target is determined. a peak detection unit that detects a detection point where a value is obtained ;
If there is a detection point that has a predetermined first threshold value and the absolute value of the physical quantity is equal to or greater than the first threshold value, it is determined that the operation surface has been contacted by the detection target. A second period is defined starting from the time when the maximum value of the physical quantity is detected, and the amount of decrease from the maximum value of the physical quantity in the second period at the detection point where the maximum value of the physical quantity is obtained. At least one detection point other than the detection point at which the maximum value of the physical quantity is detected, among the detection points at which the peak change amount is equal to or greater than the first threshold value in the period in which the maximum value of the physical quantity is detected. a control unit that determines a plurality of operations based on an off-peak change amount that is an increase amount based on the absolute value of the physical quantity detected in a period in which the maximum value of the physical quantity was detected at the detection point;
Equipped with
The control unit is configured such that the peak change amount is equal to or greater than a predetermined second threshold value in the same cycle of the second period, and the off-peak change amount is a predetermined third threshold value. If the above is the case, it is determined that an operation has been performed to move the detection target while it is in contact with the operation surface;
Input device. The control unit may be arranged such that, in the same cycle of the second period, the peak change amount does not change within a predetermined tolerance range, and the off-peak change amount does not change within a predetermined fourth period. If the increase exceeds a threshold value, it is determined that an operation of pushing the operation surface has been performed by the detection target;
The input device according to claim 1 . the fourth threshold is greater than the third threshold;
The input device according to claim 2 . A physical quantity is periodically detected at a plurality of detection points set on the operation surface , and the absolute value of the physical quantity is a peak detection unit that detects a maximum value of the physical quantity as a peak of the physical quantity and a detection point where the maximum value of the physical quantity is obtained from the value;
If there is a detection point that has a predetermined first threshold value and the absolute value of the physical quantity is equal to or greater than the first threshold value, it is determined that the operation surface has been contacted by the detection target. A second period is defined starting from the time when the maximum value of the physical quantity is detected, and the amount of decrease from the maximum value of the physical quantity in the second period at the detection point where the maximum value of the physical quantity is obtained. At least one detection point other than the detection point at which the maximum value of the physical quantity is detected, among the detection points at which the peak change amount is equal to or greater than the first threshold value in the period in which the maximum value of the physical quantity is detected. a control unit that determines a plurality of operations based on an off-peak change amount that is an increase amount based on the absolute value of the physical quantity detected in a period in which the maximum value of the physical quantity was detected at the detection point;
Equipped with
The control unit is configured such that the peak change amount is equal to or greater than a predetermined second threshold value in the same cycle of the second period, and the off-peak change amount is a predetermined third threshold value. If the above is the case, it is determined that an operation has been performed to move the detection target while it is in contact with the operation surface;
Control device.

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